Arrivingatthebusstop,_____waitingthere.
Ihopemyfather____askmeaboutmymarks.
I’dratheryou____bytrainbecausetheweatherforecastsaidtherewouldbeheavysnowtomorrow.
Thepresentsituationforcedusto____thispolicy.
Toobtainasatisfactoryresult，onemustapplytwo（）ofpaintonacleansurface.
